The Rotten Apple: How Small Negative Behaviors Can Spread and Impact an Entire Team, by Jonathan H. Westover PhD

Abstract: This article explores how disruptive behaviors from a single employee can spread to negatively impact an entire work team if not properly addressed. Grounded in research on social comparison theory, conformity bias, and group dynamics, it examines the psychological processes by which poor conduct becomes normalized and erodes team culture over time. The article then presents strategies leaders can implement to prevent toxicity from spreading, such as establishing clear behavioral standards, fostering psychological safety to encourage issue reporting, conducting proactive performance management, and cultivating an inclusive and flexible work environment. With an understanding of these underlying mechanisms and researched countermeasures, managers can safeguard team functioning and productivity from being corrupted by problematic peers.

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